kgdb.c (df7686101956929dcea410971656e34926773b88) kgdb.c (26a04d84bc5311d7785b229b353f327e866ab61a)
1/*
2 * AArch64 KGDB support
3 *
4 * Based on arch/arm/kernel/kgdb.c
5 *
6 * Copyright (C) 2013 Cavium Inc.
7 * Author: Vijaya Kumar K <vijaya.kumar@caviumnetworks.com>
8 *

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270 return DBG_HOOK_ERROR;
271
272 kgdb_handle_exception(1, SIGTRAP, 0, regs);
273 return DBG_HOOK_HANDLED;
274}
275NOKPROBE_SYMBOL(kgdb_step_brk_fn);
276
277static struct break_hook kgdb_brkpt_hook = {
1/*
2 * AArch64 KGDB support
3 *
4 * Based on arch/arm/kernel/kgdb.c
5 *
6 * Copyright (C) 2013 Cavium Inc.
7 * Author: Vijaya Kumar K <vijaya.kumar@caviumnetworks.com>
8 *

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270 return DBG_HOOK_ERROR;
271
272 kgdb_handle_exception(1, SIGTRAP, 0, regs);
273 return DBG_HOOK_HANDLED;
274}
275NOKPROBE_SYMBOL(kgdb_step_brk_fn);
276
277static struct break_hook kgdb_brkpt_hook = {
278 .esr_mask = 0xffffffff,
279 .esr_val = (u32)ESR_ELx_VAL_BRK64(KGDB_DYN_DBG_BRK_IMM),
280 .fn = kgdb_brk_fn
278 .fn = kgdb_brk_fn,
279 .imm = KGDB_DYN_DBG_BRK_IMM,
281};
282
283static struct break_hook kgdb_compiled_brkpt_hook = {
280};
281
282static struct break_hook kgdb_compiled_brkpt_hook = {
284 .esr_mask = 0xffffffff,
285 .esr_val = (u32)ESR_ELx_VAL_BRK64(KGDB_COMPILED_DBG_BRK_IMM),
286 .fn = kgdb_compiled_brk_fn
283 .fn = kgdb_compiled_brk_fn,
284 .imm = KGDB_COMPILED_DBG_BRK_IMM,
287};
288
289static struct step_hook kgdb_step_hook = {
290 .fn = kgdb_step_brk_fn
291};
292
293static int __kgdb_notify(struct die_args *args, unsigned long cmd)
294{

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327 */
328int kgdb_arch_init(void)
329{
330 int ret = register_die_notifier(&kgdb_notifier);
331
332 if (ret != 0)
333 return ret;
334
285};
286
287static struct step_hook kgdb_step_hook = {
288 .fn = kgdb_step_brk_fn
289};
290
291static int __kgdb_notify(struct die_args *args, unsigned long cmd)
292{

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325 */
326int kgdb_arch_init(void)
327{
328 int ret = register_die_notifier(&kgdb_notifier);
329
330 if (ret != 0)
331 return ret;
332
335 register_break_hook(&kgdb_brkpt_hook);
336 register_break_hook(&kgdb_compiled_brkpt_hook);
337 register_step_hook(&kgdb_step_hook);
333 register_kernel_break_hook(&kgdb_brkpt_hook);
334 register_kernel_break_hook(&kgdb_compiled_brkpt_hook);
335 register_kernel_step_hook(&kgdb_step_hook);
338 return 0;
339}
340
341/*
342 * kgdb_arch_exit - Perform any architecture specific uninitalization.
343 * This function will handle the uninitalization of any architecture
344 * specific callbacks, for dynamic registration and unregistration.
345 */
346void kgdb_arch_exit(void)
347{
336 return 0;
337}
338
339/*
340 * kgdb_arch_exit - Perform any architecture specific uninitalization.
341 * This function will handle the uninitalization of any architecture
342 * specific callbacks, for dynamic registration and unregistration.
343 */
344void kgdb_arch_exit(void)
345{
348 unregister_break_hook(&kgdb_brkpt_hook);
349 unregister_break_hook(&kgdb_compiled_brkpt_hook);
350 unregister_step_hook(&kgdb_step_hook);
346 unregister_kernel_break_hook(&kgdb_brkpt_hook);
347 unregister_kernel_break_hook(&kgdb_compiled_brkpt_hook);
348 unregister_kernel_step_hook(&kgdb_step_hook);
351 unregister_die_notifier(&kgdb_notifier);
352}
353
354const struct kgdb_arch arch_kgdb_ops;
355
356int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt)
357{
358 int err;

--- 16 unchanged lines hidden --- 		349 unregister_die_notifier(&kgdb_notifier);
350}
351
352const struct kgdb_arch arch_kgdb_ops;
353
354int kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt)
355{
356 int err;

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